Next rowCast on 16 sts, k 27 (29) for front, inc. 1 st each side of the 4 seam sts as before, k, omitting inc. at end. Cast on 16 sts at beginning of next row, p all sts; 122 (132) sts.

ButtonholesK 3, bind off 2 sts for first buttonhole, k until there are 5 sts from first buttonhole, bind off 2 sts for 2nd buttonhole, finish row, increasing 1 st each side of the 4 seam sts as before. Cast on 2 sts over each buttonhole on next row. Place sts up to 2nd seam st on one needle; all sts up to and including 3rd seam stbackon 2nd needle; all sts of right sleeve and right front on 3rd needle. Continue increases on each side of seam sts, keeping front edges even, working back and forth as before. Repeat buttonholes every 19th and 20th (23rd and 24th) row on left front. Work until there are 290 (308) sts, end with p row.

Next rowK 51 (54) sts, including seam st, slip to holder for left front; k next 58 (62) sleeve sts, keep on needle; slip the next 72 (76)backsts; 58 (62) sleeve sts; 51 (54) right front sts, each group to a separate holder.

Left SleeveCast on 2 sts at beginning of next 2 rows for underarm; 62 (66) sts. Continue stockinette st; decreasing 1 st each side every 4th row twice, every 6th row 7 (9) times; 44 sts. Work even until 7 ½ (9) ins., or desired length from underarm, allowing 3 ins. for cuff. Change to size 2 needles. Work ribbing of k 2, p 2 for 3 ins. Bind off in ribbing.

Right SleeveSlip sts of right sleeve to needle. Working from right side, k 1 row. Finish as for left sleeve. Sew sleeve seams.

Lower PartSlip left front sts to one needle, slip sts of back to 2nd needle and right front sts to 3rd needle. Working from right side, beginning at underarm of left sleeve, pick up and k 4 sts on the 4 cast-on sts of left underarm, k across back, pick up and k 4 sts on right underarm, k to end; 182 (192) sts. Work even and repeat buttonholes, until 5 (6 ½) ins. from underarm, 4 sets of buttonholes in all, end with a p row. Change to size 2 needles. Bind off 7 (8) sts at beginning of next row, with 1 st on needle k 1, p 2, continue k 2, p 2 ribbing to within 7 (8) sts of end, bind off remaining sts. Join yarn, work 1 row of ribbing; 168 (176) sts.

Next rowK 2, p 2, bind off 2 sts for buttonhole, finish row. Cast on 2 sts over the 2 bound-off sts on next row. Work 16 (20) rows of ribbing. Work 1 buttonholes on next 2 rows. Work 4 rows of ribbing. Bind off in ribbing. Fold buttonhole band, hem on wrong side. Finish buttonholes.

FinishingFold collar double, sew side seams. With weaving st sew cast-on edge to neck, with right side of collar to right side of windbreaker, short ends at center of front. Sew bound-off edge to wrong side of neck. Steam.